CBDT DXA EXAM WITH COMPLETE SOLUTIONS
Absorptiometry - Answer - a method for measuring bone mineral density using the
attenuation of x-ray or gamma radiation
Accuracy - Answer - the degree to which a measurement value estimates the actual
value of the quantity being measured
- often presented in percentage or absolute difference
Accuracy Calibration of Industry Standard - Answer - bone: hydroxyapatite
- fat: stearic acid
- lean soft tissue 0.6% sodium chloride solution
Age-Matched - Answer - comparison of the patient's BMD to a reference population of
the same age
Air Ratio - Answer - value derived from the Quality Assurance procedure which
indicates the quotient of the air value
- (air value @ 70keV) / (air value @ 38keV) for the scan table
Application - Answer - a set of instructions or a program that performs work unrelated to
the actual operation of a computer itself
- programs that operate bone densitometers and analyze the data
Archiving - Answer - saving scan images to another drive or media
Array Detector - Answer A grid or series of discrete solid state electronics capable of
converting x-rays into electronic pulses
, Background Counts - Answer - a measurement of environmental radiation
- includes leakage from the x-ray source
- taken during the systems QA procedures and obtained while the source is occluded by
the lead shutter
Back Up File - Answer - a copy of the data and other computer information
- done to protect the data and information in case of a loss of the original files
Body Composition - Answer - the process of dividing the body weight into compartments
- typically divided into: bone, lean tissue, fat tissue
- recorded in grams or percentage
Bone Area - Answer - bone projection area measured in units of centimeters (SPA) or
centimeter squared (DPA or DXA) by a densitometer
Bone Mineral Content (BMC) - Answer - measured amount of mineral in grams
determined by absorptiometry
Bone Mineral Density (BMD) - Answer - amount of mass per square centimeter of bone
measured by a densitometer
Broker - Answer - a computer that converts one type of data from a source computer
into a version suitable for use by another.
- electronic version of a translator
Broadband Ultrasound Attenuation (BUA) - Answer - a parameter measured by
quantitative ultrasound
- quantifies the energy lost from the sound wave as it passes through bone
Absorptiometry - Answer - a method for measuring bone mineral density using the
attenuation of x-ray or gamma radiation
Accuracy - Answer - the degree to which a measurement value estimates the actual
value of the quantity being measured
- often presented in percentage or absolute difference
Accuracy Calibration of Industry Standard - Answer - bone: hydroxyapatite
- fat: stearic acid
- lean soft tissue 0.6% sodium chloride solution
Age-Matched - Answer - comparison of the patient's BMD to a reference population of
the same age
Air Ratio - Answer - value derived from the Quality Assurance procedure which
indicates the quotient of the air value
- (air value @ 70keV) / (air value @ 38keV) for the scan table
Application - Answer - a set of instructions or a program that performs work unrelated to
the actual operation of a computer itself
- programs that operate bone densitometers and analyze the data
Archiving - Answer - saving scan images to another drive or media
Array Detector - Answer A grid or series of discrete solid state electronics capable of
converting x-rays into electronic pulses
, Background Counts - Answer - a measurement of environmental radiation
- includes leakage from the x-ray source
- taken during the systems QA procedures and obtained while the source is occluded by
the lead shutter
Back Up File - Answer - a copy of the data and other computer information
- done to protect the data and information in case of a loss of the original files
Body Composition - Answer - the process of dividing the body weight into compartments
- typically divided into: bone, lean tissue, fat tissue
- recorded in grams or percentage
Bone Area - Answer - bone projection area measured in units of centimeters (SPA) or
centimeter squared (DPA or DXA) by a densitometer
Bone Mineral Content (BMC) - Answer - measured amount of mineral in grams
determined by absorptiometry
Bone Mineral Density (BMD) - Answer - amount of mass per square centimeter of bone
measured by a densitometer
Broker - Answer - a computer that converts one type of data from a source computer
into a version suitable for use by another.
- electronic version of a translator
Broadband Ultrasound Attenuation (BUA) - Answer - a parameter measured by
quantitative ultrasound
- quantifies the energy lost from the sound wave as it passes through bone
